The FireAngel FA6615-R Smoke Alarm Optical Sensor is a reliable and essential device for home security. This smoke detector is powered by AA batteries, with 5 years worth included, making it hassle-free for a long period of time. The sleek white design and manufacturer warranty of 5 years add to its appeal, providing peace of mind against potential fires. Made by FireAngel in the United Kingdom, this smoke alarm is a top-quality product that ensures safety for you and your family.